A new addition to the to Alpinestars class-leading SMX range, the SMX-S Waterproof is constructed from a durable microfiber that incorporates class-leading performance and protective attributes as well as a breathable and waterproof membrane. Durable microfiber upper construction offering superb levels of flexibility and comfort. Ergonomic new last for forefoot streamlining to enable greater precision on the bike's controls and for superior, wide-ranging foot profile, fit and comfort. Incorporating a waterproof and breathable membrane for high levels of comfort and weather performance. Integrated, replaceable bi-injected TPU slider features new easy noscrew fixing concept for quicker and easier replacement. New, ergonomically optimized TPU shin plate protector is race derived for superior impact and abrasion resistance. Lateral TPR-injected ankle support construction offers optimized levels of protection and stability. Shift pad made from TPU incorporates technical texturing for protection and grip. TPU double density ankles protectors are layered under the upper in both lateral and medial side for excellent all-round levels of protection.